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Cholewiński M, Chowański S, Lubawy J, Urbański A, Walkowiak-Nowicka K, Marciniak P. Short neuropeptide F in integrated insect physiology. J Zhejiang Univ Sci B 2024; 25:389-409. [PMID: 38725339 PMCID: PMC11087187 DOI: 10.1631/jzus.b2300355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/03/2023] [Indexed: 05/13/2024]
Abstract
The short neuropeptide F (sNPF) family of peptides is a multifunctional group of neurohormones involved in the regulation of various physiological processes in insects. They have been found in a broad spectrum of species, but the number of isoforms in the precursor molecule varies from one to four. The receptor for sNPF (sNPFR), which belongs to the G protein-coupled receptor family, has been characterized in various insect orders and was shown to be an ortholog of the mammalian prolactin-releasing peptide receptor (PrPR). The sNPF signaling pathway interacts with other neurohormones such as insulin-like peptides, SIFamide, and pigment-dispersing factors (PDFs) to regulate various processes. The main physiological function of sNPF seems to be involved in the regulation of feeding, but the observed effects are species-specific. sNPF is also connected with the regulation of foraging behavior and the olfactory system. The influence of sNPF on feeding and thus energy metabolism may also indirectly affect other vital processes, such as reproduction and development. In addition, these neurohormones are involved in the regulation of locomotor activity and circadian rhythm in insects. This review summarizes the current state of knowledge about the sNPF system in insects.
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Affiliation(s)
| | | | | | | | | | - Paweł Marciniak
- Department of Animal Physiology and Developmental Biology, Adam Mickiewicz University, Poznań 61-614, Poland.
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Strnadová V, Pačesová A, Charvát V, Šmotková Z, Železná B, Kuneš J, Maletínská L. Anorexigenic neuropeptides as anti-obesity and neuroprotective agents: exploring the neuroprotective effects of anorexigenic neuropeptides. Biosci Rep 2024; 44:BSR20231385. [PMID: 38577975 PMCID: PMC11043025 DOI: 10.1042/bsr20231385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 03/26/2024] [Accepted: 04/05/2024] [Indexed: 04/06/2024] Open
Abstract
Since 1975, the incidence of obesity has increased to epidemic proportions, and the number of patients with obesity has quadrupled. Obesity is a major risk factor for developing other serious diseases, such as type 2 diabetes mellitus, hypertension, and cardiovascular diseases. Recent epidemiologic studies have defined obesity as a risk factor for the development of neurodegenerative diseases, such as Alzheimer's disease (AD) and other types of dementia. Despite all these serious comorbidities associated with obesity, there is still a lack of effective antiobesity treatment. Promising candidates for the treatment of obesity are anorexigenic neuropeptides, which are peptides produced by neurons in brain areas implicated in food intake regulation, such as the hypothalamus or the brainstem. These peptides efficiently reduce food intake and body weight. Moreover, because of the proven interconnection between obesity and the risk of developing AD, the potential neuroprotective effects of these two agents in animal models of neurodegeneration have been examined. The objective of this review was to explore anorexigenic neuropeptides produced and acting within the brain, emphasizing their potential not only for the treatment of obesity but also for the treatment of neurodegenerative disorders.
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Affiliation(s)
- Veronika Strnadová
- Department of Biochemistry and Molecular Biology, Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Andrea Pačesová
- Department of Biochemistry and Molecular Biology, Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Vilém Charvát
- Department of Biochemistry and Molecular Biology, Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Zuzana Šmotková
- Department of Biochemistry and Molecular Biology, Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Blanka Železná
- Department of Biochemistry and Molecular Biology, Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
| | - Jaroslav Kuneš
- Department of Biochemistry and Molecular Biology, Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
- Department of Biochemistry and Molecular Biology, Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Lenka Maletínská
- Department of Biochemistry and Molecular Biology, Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Prague, Czech Republic
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Jörgensen SK, Karnošová A, Mazzaferro S, Rowley O, Chen HJC, Robbins SJ, Christofides S, Merkle FT, Maletínská L, Petrik D. An analogue of the Prolactin Releasing Peptide reduces obesity and promotes adult neurogenesis. EMBO Rep 2024; 25:351-377. [PMID: 38177913 PMCID: PMC10897398 DOI: 10.1038/s44319-023-00016-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 11/02/2023] [Accepted: 11/17/2023] [Indexed: 01/06/2024] Open
Abstract
Hypothalamic Adult Neurogenesis (hAN) has been implicated in regulating energy homeostasis. Adult-generated neurons and adult Neural Stem Cells (aNSCs) in the hypothalamus control food intake and body weight. Conversely, diet-induced obesity (DIO) by high fat diets (HFD) exerts adverse influence on hAN. However, the effects of anti-obesity compounds on hAN are not known. To address this, we administered a lipidized analogue of an anti-obesity neuropeptide, Prolactin Releasing Peptide (PrRP), so-called LiPR, to mice. In the HFD context, LiPR rescued the survival of adult-born hypothalamic neurons and increased the number of aNSCs by reducing their activation. LiPR also rescued the reduction of immature hippocampal neurons and modulated calcium dynamics in iPSC-derived human neurons. In addition, some of these neurogenic effects were exerted by another anti-obesity compound, Liraglutide. These results show for the first time that anti-obesity neuropeptides influence adult neurogenesis and suggest that the neurogenic process can serve as a target of anti-obesity pharmacotherapy.
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Affiliation(s)
| | - Alena Karnošová
- First Faculty of Medicine, Charles University, Prague, 12108, Czech Republic
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, 16610, Czech Republic
| | - Simone Mazzaferro
- Wellcome-MRC Institute of Metabolic Science, Cambridge, CB2 0QQ, UK
- Wellcome-MRC Stem Cell Institute, Cambridge, CB2 0AW, UK
| | - Oliver Rowley
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
| | - Hsiao-Jou Cortina Chen
- Wellcome-MRC Institute of Metabolic Science, Cambridge, CB2 0QQ, UK
- Wellcome-MRC Stem Cell Institute, Cambridge, CB2 0AW, UK
| | - Sarah J Robbins
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK
| | | | - Florian T Merkle
- Wellcome-MRC Institute of Metabolic Science, Cambridge, CB2 0QQ, UK
- Wellcome-MRC Stem Cell Institute, Cambridge, CB2 0AW, UK
| | - Lenka Maletínská
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, 16610, Czech Republic
| | - David Petrik
- School of Biosciences, Cardiff University, Cardiff, CF10 3AX, UK.
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4
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Myšková A, Sýkora D, Kuneš J, Maletínská L. Lipidization as a tool toward peptide therapeutics. Drug Deliv 2023; 30:2284685. [PMID: 38010881 PMCID: PMC10987053 DOI: 10.1080/10717544.2023.2284685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/12/2023] [Indexed: 11/29/2023] Open
Abstract
Peptides, as potential therapeutics continue to gain importance in the search for active substances for the treatment of numerous human diseases, some of which are, to this day, incurable. As potential therapeutic drugs, peptides have many favorable chemical and pharmacological properties, starting with their great diversity, through their high affinity for binding to all sort of natural receptors, and ending with the various pathways of their breakdown, which produces nothing but amino acids that are nontoxic to the body. Despite these and other advantages, however, they also have their pitfalls. One of these disadvantages is the very low stability of natural peptides. They have a short half-life and tend to be cleared from the organism very quickly. Their instability in the gastrointestinal tract, makes it impossible to administer peptidic drugs orally. To achieve the best pharmacologic effect, it is desirable to look for ways of modifying peptides that enable the use of these substances as pharmaceuticals. There are many ways to modify peptides. Herein we summarize the approaches that are currently in use, including lipidization, PEGylation, glycosylation and others, focusing on lipidization. We describe how individual types of lipidization are achieved and describe their advantages and drawbacks. Peptide modifications are performed with the goal of reaching a longer half-life, reducing immunogenicity and improving bioavailability. In the case of neuropeptides, lipidization aids their activity in the central nervous system after the peripheral administration. At the end of our review, we summarize all lipidized peptide-based drugs that are currently on the market.
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Affiliation(s)
- Aneta Myšková
- Department of Analytical Chemistry, University of Chemistry and Technology Prague, Prague, Czech Republic
- Institute of Organic Chemistry and Biochemistry, Academy of Science of the Czech Republic, Prague, Czech Republic
| | - David Sýkora
- Department of Analytical Chemistry, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Jaroslav Kuneš
- Institute of Organic Chemistry and Biochemistry, Academy of Science of the Czech Republic, Prague, Czech Republic
- Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Lenka Maletínská
- Institute of Organic Chemistry and Biochemistry, Academy of Science of the Czech Republic, Prague, Czech Republic
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Macías M, Acha B, Corroza J, Urdánoz-Casado A, Roldan M, Robles M, Sánchez-Ruiz de Gordoa J, Erro ME, Jericó I, Blanco-Luquin I, Mendioroz M. Liquid Biopsy in Alzheimer's Disease Patients Reveals Epigenetic Changes in the PRLHR Gene. Cells 2023; 12:2679. [PMID: 38067107 PMCID: PMC10705731 DOI: 10.3390/cells12232679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 11/17/2023] [Accepted: 11/20/2023] [Indexed: 12/18/2023] Open
Abstract
In recent years, new DNA methylation variants have been reported in genes biologically relevant to Alzheimer's disease (AD) in human brain tissue. However, this AD-specific epigenetic information remains brain-locked and unreachable during patients' lifetimes. In a previous methylome performed in the hippocampus of 26 AD patients and 12 controls, we found higher methylation levels in AD patients in the promoter region of PRLHR, a gene involved in energy balance regulation. Our aim was to further characterize PRLHR's role in AD and to evaluate if the liquid biopsy technique would provide life access to this brain information in a non-invasive way. First, we extended the methylation mapping of PRLHR and validated previous methylome results via bisulfite cloning sequencing. Next, we observed a positive correlation between PRLHR methylation levels and AD-related neuropathological changes and a decreased expression of PRLHR in AD hippocampus. Then, we managed to replicate the hippocampal methylation differences in plasma cfDNA from an additional cohort of 35 AD patients and 35 controls. The isolation of cfDNA from the plasma of AD patients may constitute a source of potential epigenetic biomarkers to aid AD clinical management.
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Affiliation(s)
- Mónica Macías
- Navarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra, IdiSNA, 31008 Pamplona, Spain; (M.M.); (B.A.); (A.U.-C.); (M.R.); (M.R.); (J.S.-R.d.G.); (M.E.E.); (I.B.-L.)
| | - Blanca Acha
- Navarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra, IdiSNA, 31008 Pamplona, Spain; (M.M.); (B.A.); (A.U.-C.); (M.R.); (M.R.); (J.S.-R.d.G.); (M.E.E.); (I.B.-L.)
| | - Jon Corroza
- Neurology Department, Hospital Universitario de Navarra, IdiSNA, 31008 Pamplona, Spain; (J.C.); (I.J.)
| | - Amaya Urdánoz-Casado
- Navarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra, IdiSNA, 31008 Pamplona, Spain; (M.M.); (B.A.); (A.U.-C.); (M.R.); (M.R.); (J.S.-R.d.G.); (M.E.E.); (I.B.-L.)
| | - Miren Roldan
- Navarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra, IdiSNA, 31008 Pamplona, Spain; (M.M.); (B.A.); (A.U.-C.); (M.R.); (M.R.); (J.S.-R.d.G.); (M.E.E.); (I.B.-L.)
| | - Maitane Robles
- Navarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra, IdiSNA, 31008 Pamplona, Spain; (M.M.); (B.A.); (A.U.-C.); (M.R.); (M.R.); (J.S.-R.d.G.); (M.E.E.); (I.B.-L.)
| | - Javier Sánchez-Ruiz de Gordoa
- Navarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra, IdiSNA, 31008 Pamplona, Spain; (M.M.); (B.A.); (A.U.-C.); (M.R.); (M.R.); (J.S.-R.d.G.); (M.E.E.); (I.B.-L.)
- Neurology Department, Hospital Universitario de Navarra, IdiSNA, 31008 Pamplona, Spain; (J.C.); (I.J.)
| | - María Elena Erro
- Navarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra, IdiSNA, 31008 Pamplona, Spain; (M.M.); (B.A.); (A.U.-C.); (M.R.); (M.R.); (J.S.-R.d.G.); (M.E.E.); (I.B.-L.)
- Neurology Department, Hospital Universitario de Navarra, IdiSNA, 31008 Pamplona, Spain; (J.C.); (I.J.)
| | - Ivonne Jericó
- Neurology Department, Hospital Universitario de Navarra, IdiSNA, 31008 Pamplona, Spain; (J.C.); (I.J.)
| | - Idoia Blanco-Luquin
- Navarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra, IdiSNA, 31008 Pamplona, Spain; (M.M.); (B.A.); (A.U.-C.); (M.R.); (M.R.); (J.S.-R.d.G.); (M.E.E.); (I.B.-L.)
| | - Maite Mendioroz
- Navarrabiomed, Hospital Universitario de Navarra, Universidad Pública de Navarra, IdiSNA, 31008 Pamplona, Spain; (M.M.); (B.A.); (A.U.-C.); (M.R.); (M.R.); (J.S.-R.d.G.); (M.E.E.); (I.B.-L.)
- Neurology Department, Hospital Universitario de Navarra, IdiSNA, 31008 Pamplona, Spain; (J.C.); (I.J.)
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Hoang NMH, Jo W, Kim MS. Protective effect of Prolactin releasing peptide against 1,2-diacetylbenzene -induced neuroinflammation. Neuropeptides 2023; 100:102349. [PMID: 37269608 DOI: 10.1016/j.npep.2023.102349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 05/17/2023] [Accepted: 05/22/2023] [Indexed: 06/05/2023]
Abstract
Prolactin-releasing peptide (PrRP) has been investigated as a potential therapeutic for diabetes by the effect of food intake reduction, increasing leptin signaling, and insulin tolerance. Recent studies focused on its synaptogenesis and protective effects against neurodegeneration. Whereas 1,2-diacetylbenzene (DAB), a common metabolite of a neurotoxicant 1,2-diethyl benzene, causes memory impairment and neurotoxicity partly through the inflammatory process. Our present study assessed the effect of PrRP in microglia and its action in balancing the inflammation to protect against DAB. We observed that PrRP modulated NADPH oxidase - regulated NLRP3 inflammasome and PRL signaling pathways differently between physical and toxic conditions in microglia.
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Affiliation(s)
- Ngoc Minh Hong Hoang
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon, Jeonnam 57922, Republic of Korea
| | - Wonhee Jo
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon, Jeonnam 57922, Republic of Korea
| | - Min-Sun Kim
- Department of Pharmacy, College of Pharmacy and Research Institute of Life and Pharmaceutical Sciences, Sunchon National University, Suncheon, Jeonnam 57922, Republic of Korea.
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Late-Breaking Abstracts for ECO2023. Obes Facts 2023; 16 Suppl 1:352-416. [PMID: 37231833 PMCID: PMC10804616 DOI: 10.1159/000530674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 04/13/2023] [Indexed: 05/27/2023] Open
Abstract
This is a abstract book of Late-Breaking Abstracts.
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Strnadová V, Karnošová A, Blechová M, Neprašová B, Holá L, Němcová A, Myšková A, Sýkora D, Železná B, Kuneš J, Maletínská L. Search for lipidized PrRP analogs with strong anorexigenic effect: In vitro and in vivo studies. Neuropeptides 2023; 98:102319. [PMID: 36669365 DOI: 10.1016/j.npep.2022.102319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 11/18/2022] [Accepted: 12/28/2022] [Indexed: 01/15/2023]
Abstract
Prolactin-releasing peptide (PrRP) is an anorexigenic neuropeptide that attenuates food intake and increases energy expenditure. We designed three series of new lipidized PrRP31 analogs of different lengths of fatty acids attached at amino acids 1 or 11 directly or via linkers, part of them acetylated at the N-terminus and/or modified with dichlorophenylalanine (PheCl2) at the C-terminus. We tested their affinity for and activation of signaling pathways relevant to receptors GPR10, NPFF-R2, and NPFF-R1, effect on food intake in fasted or freely fed mice and rats, and stability in rat plasma. We aimed to select a strong dual GPR10/NPFF-R2 agonist whose affinity for NPFF-1 was not enhanced. The selected potent analog was then tested for body weight-lowering potency after chronic administration in mice with diet-induced obesity. PrRP31 analogs lipidized by monocarboxylic fatty acids showed strong dual affinity for both GPR10 and NPFF-R2 and activated MAPK/ERK1/2, Akt and CREB in cells overexpressing GPR10 and NPFF-R2. The selected analog stabilized at N- and C-termini and palmitoylated through the TTDS linker to Lys11 is a powerful dual agonist GPR10/NPFF-R2 at not enhanced affinity for NPFF-R1. It showed strong anti-obesity properties in mice with diet-induced obesity and became a potential compound for further studies.
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Affiliation(s)
- Veronika Strnadová
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic
| | - Alena Karnošová
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic; First Faculty of Medicine, Charles University, Prague 121 08, Czech Republic
| | - Miroslava Blechová
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic
| | - Barbora Neprašová
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic; Institute of Physiology, CAS, Prague 142 00, Czech Republic
| | - Lucie Holá
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic; First Faculty of Medicine, Charles University, Prague 121 08, Czech Republic
| | - Anna Němcová
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic; University of Chemistry and Technology, Prague 166 28, Czech Republic
| | - Aneta Myšková
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic; University of Chemistry and Technology, Prague 166 28, Czech Republic
| | - David Sýkora
- University of Chemistry and Technology, Prague 166 28, Czech Republic
| | - Blanka Železná
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic
| | - Jaroslav Kuneš
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic; Institute of Physiology, CAS, Prague 142 00, Czech Republic
| | - Lenka Maletínská
- Institute of Organic Chemistry and Biochemistry, CAS, Prague 166 10, Czech Republic.
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Lipidated PrRP31 metabolites are long acting dual GPR10 and NPFF2 receptor agonists with potent body weight lowering effect. Sci Rep 2022; 12:1696. [PMID: 35105898 PMCID: PMC8807614 DOI: 10.1038/s41598-022-05310-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 01/11/2022] [Indexed: 12/16/2022] Open
Abstract
Prolactin-releasing peptide (PrRP) is an endogenous neuropeptide involved in appetite regulation and energy homeostasis. PrRP binds with high affinity to G-protein coupled receptor 10 (GPR10) and with lesser activity towards the neuropeptide FF receptor type 2 (NPFF2R). The present study aimed to develop long-acting PrRP31 analogues with potent anti-obesity efficacy. A comprehensive series of C18 lipidated PrRP31 analogues was characterized in vitro and analogues with various GPR10 and NPFF2R activity profiles were profiled for bioavailability and metabolic effects following subcutaneous administration in diet-induced obese (DIO) mice. PrRP31 analogues acylated with a C18 lipid chain carrying a terminal acid (C18 diacid) were potent GPR10-selective agonists and weight-neutral in DIO mice. In contrast, acylation with aliphatic C18 lipid chain (C18) resulted in dual GPR10-NPFF2R co-agonists that suppressed food intake and promoted a robust weight loss in DIO mice, which was sustained for at least one week after last dosing. Rapid in vivo degradation of C18 PrRP31 analogues gave rise to circulating lipidated PrRP metabolites maintaining dual GPR10-NPFF2R agonist profile and long-acting anti-obesity efficacy in DIO mice. Combined GPR10 and NPFF2R activation may therefore be a critical mechanism for obtaining robust anti-obesity efficacy of PrRP31 analogues.
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Mengr A, Hrubá L, Exnerová A, Holubová M, Popelová A, Železná B, Kuneš J, Maletínská L. Palmitoylated prolactin-releasing peptide reduced Aβ plaques and microgliosis in the cerebellum: APP/PS1 mice study. Curr Alzheimer Res 2021; 18:607-622. [PMID: 34551697 DOI: 10.2174/1567205018666210922110652] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 01/22/2023]
Abstract
BACKGROUND Prolactin-releasing peptide (PrRP) is a potential drug for the treatment of obesity and associated type 2 diabetes mellitus (T2DM) due to its strong anorexigenic and antidiabetic properties. In our recent study, the lipidized PrRP analog palm11-PrRP31 was proven to exert beneficial effects in APP/PS1 mice, a model of Alzheimer´s disease (AD)-like amyloid-β (Aβ) pathology, reducing the Aβ plaque load, microgliosis and astrocytosis in the hippocampus and cortex. OBJECTIVE In this study, we focused on the neuroprotective and anti-inflammatory effects of palm11-PrRP31 and its possible impact on synaptogenesis in the cerebellum of APP/PS1 mice, because others have suggested that cerebellar Aβ plaques contribute to cognitive deficits in AD. METHODS APP/PS1 mice were treated subcutaneously with palm11-PrRP31 for 2 months, then immunoblotting and immunohistochemistry were used to quantify pathological markers connected to AD, compared to control mice. RESULTS In the cerebella of 8 months old APP/PS1 mice, we found widespread Aβ plaques surrounded by activated microglia detected by ionized calcium-binding adapter molecule (Iba1), but no increase in astrocytic marker glial fibrillary acidic protein (GFAP) compared to controls. Interestingly, no difference in both presynaptic markers syntaxin1A and postsynaptic marker spinophilin was registered between APP/PS1 and control mice. Palm11-PrRP31 treatment significantly reduced the Aβ plaque load and microgliosis in the cerebellum. Furthermore, palm11-PrRP31 increased synaptogenesis and attenuated neuroinflammation and apoptosis in the hippocampus of APP/PS1 mice. CONCLUSION These results suggest palm11-PrRP31 is a promising agent for the treatment of neurodegenerative disorders.
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Affiliation(s)
- Anna Mengr
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Lucie Hrubá
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Aneta Exnerová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Martina Holubová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Andrea Popelová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Blanka Železná
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Jaroslav Kuneš
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
| | - Lenka Maletínská
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 166 10 Prague 6. Czech Republic
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Жуков ДА, Марков АГ, Виноградова ЕП. [Prolactin-releasing peptide increases rat anxiety]. PROBLEMY ENDOKRINOLOGII 2021; 67:29-33. [PMID: 34766487 PMCID: PMC9112849 DOI: 10.14341/probl12770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/31/2021] [Accepted: 09/09/2021] [Indexed: 12/16/2022]
Abstract
BACKGROUND Prolactin-releasing peptide(Prl-RP), in addition to stimulating the production of prolactin, interacts with various parts of the central nervous system, participating in the implementation of many functions that are reflected in behavior. AIM The effect of Prl-RP on the anxiety of white Wistar rats was studied since there were no data in the literature on the relationship between Prl-RP and anxiety. MATERIALS AND METHODS Anxiety was assessed in two tests. In the elevated plus-maze (EPM), the time spent in the open arms and the number of edge reactions were recorded. In the social preference test, the time spent near a stranger, near a familiar individual, and in neutral territory were recorded. RESULTS The administration of Prl-RP at a dose of 10-10 M with a volume of 10 µl in each nostril reduced the time spent by the animals in the open arms of the EPM, and the number of edge reactions. For testing the social interaction, animals were pre-selected for high or low levels of anxiety in the EPM. In rats with initially low levels of anxiety, Prl-RP reduced the time spent near a stranger, indicating an increase in anxiety levels. The behavior of rats with initially high levels of anxiety did not change after application of the Prl-RP. CONCLUSION The results of our experiments indicate that the intranasal administration of Prl-RP increases the anxiety of rats.
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Pirník Z, Kořínková L, Osacká J, Železná B, Kuneš J, Maletínská L. Cholecystokinin system is involved in the anorexigenic effect of peripherally applied palmitoylated prolactin-releasing peptide in fasted mice. Physiol Res 2021; 70:579-590. [PMID: 34062082 PMCID: PMC8820541 DOI: 10.33549/physiolres.934694] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 04/22/2021] [Indexed: 11/25/2022] Open
Abstract
Prolactin-releasing peptide (PrRP) has been proposed to mediate the central satiating effects of cholecystokinin (CCK) through the vagal CCK1 receptor. PrRP acts as an endogenous ligand of G protein-coupled receptor 10 (GPR10), which is expressed at the highest levels in brain areas related to food intake regulation, e.g., the paraventricular hypothalamic nucleus (PVN) and nucleus of the solitary tract (NTS). The NTS and PVN are also significantly activated after peripheral CCK administration. The aim of this study was to determine whether the endogenous PrRP neuronal system in the brain is involved in the central anorexigenic effect of the peripherally administered CCK agonist JMV236 or the CCK1 antagonist devazepide and whether the CCK system is involved in the central anorexigenic effect of the peripherally applied lipidized PrRP analog palm-PrRP31 in fasted lean mice. The effect of devazepide and JMV236 on the anorexigenic effects of palm-PrRP31 as well as devazepide combined with JMV236 and palm-PrRP31 on food intake and Fos cell activation in the PVN and caudal NTS was examined. Our results suggest that the anorexigenic effect of JMV236 is accompanied by activation of PrRP neurons of the NTS in a CCK1 receptor-dependent manner. Moreover, while the anorexigenic effect of palm-PrRP31 was not affected by JMV236, it was partially attenuated by devazepide in fasted mice. The present findings indicate that the exogenously influenced CCK system may be involved in the central anorexigenic effect of peripherally applied palm-PrRP31, which possibly indicates some interaction between the CCK and PrRP neuronal systems.
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Affiliation(s)
- Z Pirník
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Prague, Czech Republic,
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13
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Powell DR, Revelli JP, Doree DD, DaCosta CM, Desai U, Shadoan MK, Rodriguez L, Mullens M, Yang QM, Ding ZM, Kirkpatrick LL, Vogel P, Zambrowicz B, Sands AT, Platt KA, Hansen GM, Brommage R. High-Throughput Screening of Mouse Gene Knockouts Identifies Established and Novel High Body Fat Phenotypes. Diabetes Metab Syndr Obes 2021; 14:3753-3785. [PMID: 34483672 PMCID: PMC8409770 DOI: 10.2147/dmso.s322083] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 08/04/2021] [Indexed: 01/05/2023] Open
Abstract
PURPOSE Obesity is a major public health problem. Understanding which genes contribute to obesity may better predict individual risk and allow development of new therapies. Because obesity of a mouse gene knockout (KO) line predicts an association of the orthologous human gene with obesity, we reviewed data from the Lexicon Genome5000TM high throughput phenotypic screen (HTS) of mouse gene KOs to identify KO lines with high body fat. MATERIALS AND METHODS KO lines were generated using homologous recombination or gene trapping technologies. HTS body composition analyses were performed on adult wild-type and homozygous KO littermate mice from 3758 druggable mouse genes having a human ortholog. Body composition was measured by either DXA or QMR on chow-fed cohorts from all 3758 KO lines and was measured by QMR on independent high fat diet-fed cohorts from 2488 of these KO lines. Where possible, comparisons were made to HTS data from the International Mouse Phenotyping Consortium (IMPC). RESULTS Body fat data are presented for 75 KO lines. Of 46 KO lines where independent external published and/or IMPC KO lines are reported as obese, 43 had increased body fat. For the remaining 29 novel high body fat KO lines, Ksr2 and G2e3 are supported by data from additional independent KO cohorts, 6 (Asnsd1, Srpk2, Dpp8, Cxxc4, Tenm3 and Kiss1) are supported by data from additional internal cohorts, and the remaining 21 including Tle4, Ak5, Ntm, Tusc3, Ankk1, Mfap3l, Prok2 and Prokr2 were studied with HTS cohorts only. CONCLUSION These data support the finding of high body fat in 43 independent external published and/or IMPC KO lines. A novel obese phenotype was identified in 29 additional KO lines, with 27 still lacking the external confirmation now provided for Ksr2 and G2e3 KO mice. Undoubtedly, many mammalian obesity genes remain to be identified and characterized.
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Affiliation(s)
- David R Powell
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
| | - Jean-Pierre Revelli
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
| | - Deon D Doree
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
| | - Christopher M DaCosta
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
| | - Urvi Desai
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
| | - Melanie K Shadoan
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
| | - Lawrence Rodriguez
- Department of Information Technology, Lexicon Pharmaceuticals, Inc, The Woodlands, Tx, USA
| | - Michael Mullens
- Department of Information Technology, Lexicon Pharmaceuticals, Inc, The Woodlands, Tx, USA
| | - Qi M Yang
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
| | - Zhi-Ming Ding
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
| | - Laura L Kirkpatrick
- Department of Molecular Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, Tx, USA
| | - Peter Vogel
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
| | - Brian Zambrowicz
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
- Department of Information Technology, Lexicon Pharmaceuticals, Inc, The Woodlands, Tx, USA
- Department of Molecular Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, Tx, USA
| | - Arthur T Sands
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
- Department of Information Technology, Lexicon Pharmaceuticals, Inc, The Woodlands, Tx, USA
- Department of Molecular Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, Tx, USA
| | - Kenneth A Platt
- Department of Molecular Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, Tx, USA
| | - Gwenn M Hansen
- Department of Molecular Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, Tx, USA
| | - Robert Brommage
- Department of Pharmaceutical Biology, Lexicon Pharmaceuticals, Inc, The Woodlands, TX, USA
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14
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Sun Y, Zuo Z, Kuang Y. Prolactin-Releasing Peptide Differentially Regulates Gene Transcriptomic Profiles in Mouse Bone Marrow-Derived Macrophages. Int J Mol Sci 2021; 22:ijms22094456. [PMID: 33923285 PMCID: PMC8123224 DOI: 10.3390/ijms22094456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 04/14/2021] [Accepted: 04/20/2021] [Indexed: 01/24/2023] Open
Abstract
Prolactin-releasing Peptide (PrRP) is a neuropeptide whose receptor is GPR10. Recently, the regulatory role of PrRP in the neuroendocrine field has attracted increasing attention. However, the influence of PrRP on macrophages, the critical housekeeper in the neuroendocrine field, has not yet been fully elucidated. Here, we investigated the effect of PrRP on the transcriptome of mouse bone marrow-derived macrophages (BMDMs) with RNA sequencing, bioinformatics, and molecular simulation. BMDMs were exposed to PrRP (18 h) and were subjected to RNA sequencing. Differentially expressed genes (DEGs) were acquired, followed by GO, KEGG, and PPI analysis. Eight qPCR-validated DEGs were chosen as hub genes. Next, the three-dimensional structures of the proteins encoded by these hub genes were modeled by Rosetta and Modeller, followed by molecular dynamics simulation by the Gromacs program. Finally, the binding modes between PrRP and hub proteins were investigated with the Rosetta program. PrRP showed no noticeable effect on the morphology of macrophages. A total of 410 DEGs were acquired, and PrRP regulated multiple BMDM-mediated functional pathways. Besides, the possible docking modes between PrRP and hub proteins were investigated. Moreover, GPR10 was expressed on the cell membrane of BMDMs, which increased after PrRP exposure. Collectively, PrRP significantly changed the transcriptome profile of BMDMs, implying that PrRP may be involved in various physiological activities mastered by macrophages.
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Affiliation(s)
- Yulong Sun
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China; (Z.Z.); (Y.K.)
- Key Laboratory for Space Biosciences & Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
- Correspondence: ; Tel.: +86-29-8846-0332
| | - Zhuo Zuo
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China; (Z.Z.); (Y.K.)
- Key Laboratory for Space Biosciences & Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yuanyuan Kuang
- School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China; (Z.Z.); (Y.K.)
- Key Laboratory for Space Biosciences & Biotechnology, Institute of Special Environmental Biophysics, School of Life Sciences, Northwestern Polytechnical University, Xi’an 710072, China
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15
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Pražienková V, Funda J, Pirník Z, Karnošová A, Hrubá L, Kořínková L, Neprašová B, Janovská P, Benzce M, Kadlecová M, Blahoš J, Kopecký J, Železná B, Kuneš J, Bardová K, Maletínská L. GPR10 gene deletion in mice increases basal neuronal activity, disturbs insulin sensitivity and alters lipid homeostasis. Gene 2021; 774:145427. [PMID: 33450349 DOI: 10.1016/j.gene.2021.145427] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/27/2020] [Accepted: 01/05/2021] [Indexed: 02/07/2023]
Abstract
G-protein-coupled receptor GPR10 is expressed in brain areas regulating energy metabolism. In this study, the effects of GPR10 gene deficiency on energy homeostasis in mice of both sexes fed either standard chow or a high-fat diet (HFD) were studied, with a focus on neuronal activation of PrRP neurons, and adipose tissue and liver metabolism. GPR10 deficiency in males upregulated the phasic and tonic activity of PrRP neurons in the nucleus of the solitary tract. GPR10 knockout (KO) males on a standard diet displayed a higher body weight than their wild-type (WT) littermates due to an increase in adipose tissue mass; however, HFD feeding did not cause weight differences between genotypes. Expression of lipogenesis genes was suppressed in the subcutaneous adipose tissue of GPR10 KO males. In contrast, GPR10 KO females did not differ in body weight from their WT controls, but showed elevated expression of lipid metabolism genes in the liver and subcutaneous adipose tissue compared to WT controls. An attenuated non-esterified fatty acids change after glucose load compared to WT controls suggested a defect in insulin-mediated suppression of lipolysis in GPR10 KO females. Indirect calorimetry did not reveal any differences in energy expenditure among groups. In conclusion, deletion of GPR10 gene resulted in changes in lipid metabolism in mice of both sexes, however in different extent. An increase in adipose tissue mass observed in only GPR10 KO males may have been prevented in GPR10 KO females owing to a compensatory increase in the expression of metabolic genes.
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Affiliation(s)
- Veronika Pražienková
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610 Prague, Czech Republic
| | - Jiří Funda
- Institute of Physiology of the Czech Academy of Sciences, 14200 Prague, Czech Republic
| | - Zdenko Pirník
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610 Prague, Czech Republic; Biomedical Research Center SAS of the Slovak Academy of Sciences, 845 05 Bratislava, Slovak Republic; Institute of Physiology, Faculty of Medicine, Comenius University in Bratislava, 813 72 Bratislava, Slovak Republic
| | - Alena Karnošová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610 Prague, Czech Republic
| | - Lucie Hrubá
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610 Prague, Czech Republic
| | - Lucia Kořínková
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610 Prague, Czech Republic
| | - Barbora Neprašová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610 Prague, Czech Republic
| | - Petra Janovská
- Institute of Physiology of the Czech Academy of Sciences, 14200 Prague, Czech Republic
| | - Michal Benzce
- Institute of Physiology of the Czech Academy of Sciences, 14200 Prague, Czech Republic
| | - Michaela Kadlecová
- Institute of Physiology of the Czech Academy of Sciences, 14200 Prague, Czech Republic
| | - Jaroslav Blahoš
- Institute of Molecular Genetics of the Czech Academy of Sciences, 14220 Prague, Czech Republic
| | - Jan Kopecký
- Institute of Physiology of the Czech Academy of Sciences, 14200 Prague, Czech Republic
| | - Blanka Železná
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610 Prague, Czech Republic
| | - Jaroslav Kuneš
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610 Prague, Czech Republic; Institute of Physiology of the Czech Academy of Sciences, 14200 Prague, Czech Republic
| | - Kristina Bardová
- Institute of Physiology of the Czech Academy of Sciences, 14200 Prague, Czech Republic
| | - Lenka Maletínská
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, 16610 Prague, Czech Republic.
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16
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Zhang S, Cui Y, Ma X, Yong J, Yan L, Yang M, Ren J, Tang F, Wen L, Qiao J. Single-cell transcriptomics identifies divergent developmental lineage trajectories during human pituitary development. Nat Commun 2020; 11:5275. [PMID: 33077725 PMCID: PMC7572359 DOI: 10.1038/s41467-020-19012-4] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 09/23/2020] [Indexed: 12/01/2022] Open
Abstract
The anterior pituitary gland plays a central role in regulating various physiological processes, including body growth, reproduction, metabolism and stress response. Here, we perform single-cell RNA-sequencing (scRNA-seq) of 4113 individual cells from human fetal pituitaries. We characterize divergent developmental trajectories with distinct transitional intermediate states in five hormone-producing cell lineages. Corticotropes exhibit an early intermediate state prior to full differentiation. Three cell types of the PIT-1 lineage (somatotropes, lactotropes and thyrotropes) segregate from a common progenitor coexpressing lineage-specific transcription factors of different sublineages. Gonadotropes experience two multistep developmental trajectories. Furthermore, we identify a fetal gonadotrope cell subtype expressing the primate-specific hormone chorionic gonadotropin. We also characterize the cellular heterogeneity of pituitary stem cells and identify a hybrid epithelial/mesenchymal state and an early-to-late state transition. Here, our results provide insights into the transcriptional landscape of human pituitary development, defining distinct cell substates and subtypes and illustrating transcription factor dynamics during cell fate commitment. Editor’s summary_NCOMMS-19-41732B The anterior pituitary gland controls body growth and reproduction but how early development is dynamically regulated is unclear. Here, the authors use scRNA-seq of human fetal pituitaries to identify different developmental routes and state transitions of five hormone-producing cell lineages, and a hybrid epithelial/mesenchymal state of pituitary stem cells.
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Affiliation(s)
- Shu Zhang
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China.,Biomedical Pioneering Innovation Center, School of Life Sciences, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Beijing, 100871, China
| | - Yueli Cui
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China.,Biomedical Pioneering Innovation Center, School of Life Sciences, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Beijing, 100871, China
| | - Xinyi Ma
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing, 100191, China
| | - Jun Yong
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing, 100191, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, 100191, China
| | - Liying Yan
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing, 100191, China
| | - Ming Yang
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China.,Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing, 100191, China.,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, 100191, China.,Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Jie Ren
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China.,Biomedical Pioneering Innovation Center, School of Life Sciences, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Beijing, 100871, China
| | - Fuchou Tang
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China.,Biomedical Pioneering Innovation Center, School of Life Sciences, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Beijing, 100871, China.,Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, 100871, China
| | - Lu Wen
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China. .,Biomedical Pioneering Innovation Center, School of Life Sciences, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Beijing, 100871, China.
| | - Jie Qiao
- Department of Obstetrics and Gynecology, Beijing Advanced Innovation Center for Genomics, School of Life Sciences, Third Hospital, Peking University, Beijing, 100871, China. .,Biomedical Pioneering Innovation Center, School of Life Sciences, Ministry of Education Key Laboratory of Cell Proliferation and Differentiation, Beijing, 100871, China. .,Key Laboratory of Assisted Reproduction, Ministry of Education, Beijing, 100191, China. .,Beijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology, Beijing, 100191, China.
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17
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Cellular Signaling and Anti-Apoptotic Effects of Prolactin-Releasing Peptide and Its Analog on SH-SY5Y Cells. Int J Mol Sci 2020; 21:ijms21176343. [PMID: 32882929 PMCID: PMC7503370 DOI: 10.3390/ijms21176343] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/27/2020] [Accepted: 08/29/2020] [Indexed: 02/06/2023] Open
Abstract
Prolactin-releasing peptide (PrRP), a natural ligand for the GPR10 receptor, is a neuropeptide with anorexigenic and antidiabetic properties. Due to its role in the regulation of food intake, PrRP is a potential drug for obesity treatment and associated type 2 diabetes mellitus (T2DM). Recently, the neuroprotective effects of lipidized PrRP analogs have been proven. In this study, we focused on the molecular mechanisms of action of natural PrRP31 and its lipidized analog palm11-PrRP31 in the human neuroblastoma cell line SH-SY5Y to describe their cellular signaling and possible anti-apoptotic properties. PrRP31 significantly upregulated the phosphoinositide-3 kinase-protein kinase B/Akt (PI3K-PKB/Akt) and extracellular signal-regulated kinase/cAMP response element-binding protein (ERK-CREB) signaling pathways that promote metabolic cell survival and growth. In addition, we proved via protein kinase inhibitors that activation of signaling pathways is mediated specifically by PrRP31 and its palmitoylated analog. Furthermore, the potential neuroprotective properties were studied through activation of anti-apoptotic pathways of PrRP31 and palm11-PrRP31 using the SH-SY5Y cell line and rat primary neuronal culture stressed with toxic methylglyoxal (MG). The results indicate increased viability of the cells treated with PrRP and palm11-PrRP31 and a reduced degree of apoptosis induced by MG, suggesting their potential use in the treatment of neurological disorders.
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18
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Abstract
In recent years, peptides have received increased interest in pharmaceutical, food, cosmetics and various other fields [...].
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